Electrical connecting device



June 5, 1928.

E. M. HUNT ELECTRICAL CONNECTING DEVICE Filed Jan. 5, 1926 Patented June 5, 1928.

I UNITED STATES ERNEST m. HUNT, or QUINCY, MASSACHUSETTS.

ELECTRICAL CONNECTING DEVICE.

Application filed January This invention relates to an impro ved electrical connectlng device which s capable of general use but which 15 especially adapted for radio apparatus. It is an object of the invention to provide a connecting device which is relatively simple and easy to construct, which makes a firm solid contact, which shields efiiciently the live metallic members from accidental contact with other metallic parts of an apparatus, and which is durable. I

Other advantageous features of construction will be apparent to one skilled in the art from the following description of the in vention and from the drawing, of which,-

Figure 1 shows in perspective and partly in section, another form of socket embodying the invention, and a plug connector adapted to cooperate therewith, the parts being separated.

Figure 2 shows in section the socket shown by Figure 1, the parts being assembled, the socket being engaged with the plug connec: tor.

The same reference characters indicate the same parts in all of the figures.

The insulating casing of the socket is sectional and composed of rigid insulating material, such as bakelite.

The casing includes an inner section 27, having at one end a rigid internal annular seat 28, surrounding an orifice 29, which receives a flexible conductor 14, and at its opposite end a fixed internally threaded bushing 80, preferably of metal. The casing in cludes also an annular outer section 31, constituting an extension of the inner section,

and. provided with a sleeve 32, having an external thread engaging the internal thread of the bushing 30, the bore of the sleeve being internally threaded to engage an externally threaded fixed plug connector or binding post 33.

The enclosed contact member fixed to the flexible conductor 14 within the casing is designated by 34, and is formed to abut against the seat 28, to prevent separation of the Socket from the flexible conductor.

The casing is adapted to turn freely on the conductor 14, during the operation of engaging the socket with the plug connector 5, 1926. Serial No. 79,451.

33, until the connector contacts with the contact member 34, said member being then clamped firmly against the seat 28, by the plug connector.

The socket shown by the figure also prevents liability of short-circuiting contact between the contact member 34: and the Contact member of another socket, the construction being such that the socket may be quickly and conveniently engaged with and separated i'rom the plug connector 33, without twisting the flexible conductor during either operation.

i I claim;

1. In an electrical connector, a socket compri-sing asectional casing of rigid insulating material including an inner and an outer section, the inner section having at one end a rigid annular seat surrounding an orifice which receives a flexible conductor, and at its opposite end a fixed internally threaded bushing, the outer section being annular and constituting an extension of the inner section, and. provided with a sleeve having an external thread engaging the internal thread of the bushing, and'with an internal thread, an enclosed terminal contact member fixed to the flexible conductor within the casing, and abutting said seat to prevent separation of the socket from the flexible conductor, said enclosed contact member being protected by the casing against shortcircuiting contact with the contact member of another socket, and an externally threaded plug connector, adapted to engagethe internal thread of said sleeve, and have con ducting and clamping contact'with the terminal contact member, the socket being adapted to turn loosely on the flexible conductor, until the plug connector contacts with the terminal contact member.

2. In an electrical connector, a socket comprising a sectional casing of rigid insulating material including an inner and an outer section, the inner section having at one end a rigid annular seat surrounding an orifice which receives a flexible conductor, and at itsopposite end a fixed internally threaded bushing, theouter section being annular and constituting an extension of the inner section, and provided with a sleeve having an external thread engaging the internal thread ible conductor, said contact member being of the bushing, and With an internal thread alined With the thread bore of said sleeve 1 to receive a plug connector, said outer secfor clamping and conductingcontact with a tion also overlying the outer end face of said plug connector when screwed into the socket sleeve, and an enclosed terminal contact through the sleeve. inemberfixeol to they flexible conductor \Vlllll- In testimony Whereofl haveaffixed my in the casing, and abutting said seat to pre signature.

vent separation of the socketfrorn the flex ERNEST M. HUNT. 

